4.3
Retainful offers Free Trial, but SMTP does not.
Retainful is designed for Large Enterprises, Medium Business and Small Business.
SMTP is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Retainful begins at $19/Month, while pricing details for SMTP are unavailable.
Some top alternatives to Retainful includes Pipedrive, Campaigner, Moosend, SMTP, Omnisend, Firecart, Constant Contact, Campaign Monitor, GetResponse, Emma, MailBot, Automizy, Rejoiner, EmailBooster, SendFox, Ackwire and Structure Pie.
Some top alternatives to SMTP includes Pipedrive, Campaigner and Moosend.
